According to the Farmer’s Almanac, it’s actually called the full worm moon, a nickname given by Native Americans — the Algonquin tribes in particular — who used lunar phases to track the seasons.

“At the time of this Moon, the ground begins to soften enough for earthworm casts to reappear, inviting the return of robins and migrating birds— a true sign of spring,” the almanac reported. “Roots start to push their way up through the soil, and the Earth experiences a re-birth as it awakens from its winter slumber.”